How many neutrons does the isotope of lithium have?

• 8
• 3
• 5

Tags

NGSS.MS-PS1-1

If a hydrogen atom has 1 proton, 1 electron, and 1 neutron, its atomic number is:

• 1
• 2
• 3

Tags

NGSS.MS-PS1-1

How many protons does this isotope of titanium have?

• 48
• 22
• 26

Tags

NGSS.MS-PS1-1

If a sulfur atom has 16 protons, 16 electrons, and 16 neutrons, its atomic mass is:

• 16
• 32
• 48

Tags

NGSS.MS-PS1-1

How is carbon-12 different from carbon-14?

• They have a different number of protons
• they have a different number of electrons
• they have a different number of neutrons

What do carbon-12 and carbon-14 have in common?

• they have same number of protons
• they have the same number of neutrons
• they have the same atomic mass
• they have the same atomic weight

Which part of an atom has the smallest mass?

• Proton

• Neutron

• Electron

• They are all the same

Which part of an atom has a positive charge?

• Proton

• Neutron

• Electron

• None of them

Which part of an atom has a negative charge?

• Proton

• Neutron

• Electron

• None of them

Which part of an atom has no charge?

• Proton

• Neutron

• Electron

• None of them